Dr. Mark J Ridenour, DDS

Dr. Mark J Ridenour is a Oral and Maxillofacial Surgery (Dentist) provider (Dentist) practicing in Oshkosh, WI, registered in the NPPES registry with NPI 1265630636 since 2007. The credential DDS stands for Doctor of Dental Surgery. Practices at Winnebago Oral Surgery, S.C. (listed at the same practice address in NPPES).

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NPI	1265630636
Entity type	Individual (Type 1)
Name	Dr. Mark J Ridenour
Credential	DDS
Sex	Male
Practice address	1875 W POINTE DR, Oshkosh, WI, 54902
Phone	9202314600
Enumeration date	2007-07-06
Last updated in NPPES	2011-07-05

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223S0112X	Oral and Maxillofacial Surgery (Dentist)	Primary	6044-15	WI

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Mark Ridenour, DDS
NPI: 1265630636
Taxonomy: 1223S0112X (Oral and Maxillofacial Surgery (Dentist))
Address: 1875 W POINTE DR, Oshkosh, WI, 54902

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1386765840	Winnebago Oral Surgery, S.C.	Organization	Oral and Maxillofacial Surgery (Dentist)	Oshkosh, WI
1306337670	Jerad Servais	Individual	Oral and Maxillofacial Surgery (Dentist)	Oshkosh, WI

Verify this record

Cross-check NPI 1265630636 against the authoritative CMS record: view Dr. Mark J Ridenour on the official NPPES registry .

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.

Frequently asked questions

What is the NPI number for Mark Ridenour?

The National Provider Identifier (NPI) for Mark Ridenour is 1265630636, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Ridenour practice?

The practice location on file with NPPES is in Oshkosh, WI. Providers can have multiple locations; NPPES lists the primary practice address.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2011-07-05.